<I>Rosa rubiginosa</I> (IMAGE) Helmholtz Association Caption Species like the sweet briar rose (Rosa rubiginosa) will be difficult to eradicate because they are now so widespread. Twenty-two non-native species which occur in Chile on connecting roads leading to Argentina present a high risk according to the researchers. Credit Stefan Klotz/UFZ Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.